Results 11 to 20 of about 147,360 (213)
The pace of evolution across fitness valleys [PDF]
, 2009 How fast does a population evolve from one fitness peak to another? We study the dynamics of evolving, asexually reproducing populations in which a certain number of mutations jointly confer a fitness advantage.
Gokhale, Chaitanya S. +3 more
core +3 more sources
Robust forward simulations of recurrent hitchhiking [PDF]
, 2014 Evolutionary forces shape patterns of genetic diversity within populations and contribute to phenotypic variation. In particular, recurrent positive selection has attracted significant interest in both theoretical and empirical studies.
Hernandez, Ryan D. +1 more
core +2 more sources
The dynamics of alternative pathways to compensatory substitution [PDF]
, 2013 The role of epistatic interactions among loci is a central question in evolutionary biology and is increasingly relevant in the genomic age. While the population genetics of compensatory substitution have received considerable attention, most studies ...
Nasrallah, Chris A.
core +2 more sources
Different evolutionary paths to complexity for small and large populations of digital organisms
, 2016 A major aim of evolutionary biology is to explain the respective roles of adaptive versus non-adaptive changes in the evolution of complexity. While selection is certainly responsible for the spread and maintenance of complex phenotypes, this does not ...
Adami, Christoph, LaBar, Thomas
core +7 more sources
PLOS ONE, 2019 The ecological theory of island biogeography suggests that mainland populations should be more genetically divergent from those on large and distant islands rather than from those on small and close islets. Some island populations do not evolve in a linear way, but the process of divergence occurs more rapidly because they undergo a series of ...
Buglione M. +7 more
openaire +5 more sources
Muller's ratchet and mutational meltdowns [PDF]
, 1993 We extend our earlier work on the role of deleterious mutations in the extinction of obligately asexual populations. First, we develop analytical models for mutation accumulation that obviate the need for time-consuming computer simulations in certain ...
Bürger, Reinhard +2 more
core +1 more source
Technologically modified genes in natural populations [PDF]
, 1993 Current theories of evolutionary and ecological genetics cannot be used for general statements on risk assessment of gene technology. In a simplifying model, the genes which are transferred from artificial populations are treated like mutations in the ...
Gabriel, Wilfried, Wöhrmann, Klaus
core +1 more source
Fixation and consensus times on a network: a unified approach
, 2008 We investigate a set of stochastic models of biodiversity, population genetics, language evolution and opinion dynamics on a network within a common framework. Each node has a state, 0 < x_i < 1, with interactions specified by strengths m_{ij}.
A. J. McKane +9 more
core +1 more source
Integrating the processes in the evolutionary system of domestication [PDF]
, 2010 Genetics has long been used as a source of evidence to understand domestication origins. A recent shift in the emphasis of archaeological evidence from a rapid transition paradigm of hunter-gatherers to agriculturalists, to a protracted transition ...
Allaby +15 more
core +1 more source
Population dynamics in compressible flows
, 2012 Organisms often grow, migrate and compete in liquid environments, as well as on solid surfaces. However, relatively little is known about what happens when competing species are mixed and compressed by fluid turbulence.
A. Kolmogorov +51 more
core +1 more source